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International Standard Category: Cadmium, cobalt and their alloys |
Category No.: | 77.120.70 | Valid Status: | superseded |
Issued Organization: | China Non-Ferrous Metals Industry Association | Issued Date: | 1984-04-30 |
Implemented Date: | 1985-4-1 | Abolished Date: | |
Superseded Standard.: | YS/T 520.2-2006 Methods for chemical analysis of gallium. The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content |
Superseded Date: | 2007-9-29 |
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